Service area restriction enforcement in wireless network

Abstract

The disclosure relates to a 5th generation (5G) or 6th generation (6G) communication system for supporting a higher data transmission rate. According to an embodiment, a method performed by an access and mobility management function (AMF) entity in a mobile communication system is provided. The method comprises receiving, from a user equipment (UE), a registration request message, identifying at least one local area data network (LADN) service area per data network name (DNN) and single-network slice selection assistance information (S-NSSAI) based on information for identifying the at least one LADN service area and transmitting, to the UE, a registration accept message as a response to the registration request message, the registration accept message including DNN information and tracking area (TA) list information which correspond to the at least one LADN service area per DNN and S-NSSAI.

1 . A method performed by an access and mobility management function (AMF) entity in a mobile communication system, the method comprising:
 receiving, from a user equipment (UE), a registration request message;   identifying at least one local area data network (LADN) service area per data network name (DNN) and single-network slice selection assistance information (S-NSSAI) based on information for identifying the at least one LADN service area; and   transmitting, to the UE, a registration accept message as a response to the registration request message, the registration accept message including DNN information and tracking area (TA) list information which correspond to the at least one LADN service area per DNN and S-NSSAI.   
     
     
         2 . The method of  claim 1 , wherein the information is obtained from a local configuration or is received from a unified data management (UDM) entity. 
     
     
         3 . The method of  claim 1 , wherein the TA list information is mapped with geographical information. 
     
     
         4 . The method of  claim 1 , further comprising:
 receiving, from the UE, a protocol data unit (PDU) session request message in case that the UE is in the at least one LADN service area; and   transmitting, to the UE, accept message as a response to the PDU session request message.   
     
     
         5 . An access and mobility management function (AMF) entity in a mobile communication system, the AMF entity comprising:
 a transceiver; and   a controller coupled with the transceiver and configured to:   receive, from a user equipment (UE), a registration request message;   identify at least one local area data network (LADN) service area per data network name (DNN) and single-network slice selection assistance information (S-NSSAI) based on information for identifying the at least one LADN service area; and   transmit, to the UE, a registration accept message as a response to the registration request message, the registration accept message including DNN information and tracking area (TA) list information which correspond to the at least one LADN service area per DNN and S-NSSAI.   
     
     
         6 . The AMF entity of  claim 5 , wherein the information is obtained from a local configuration or is received from a unified data management (UDM) entity. 
     
     
         7 . The AMF entity of  claim 5 , wherein the TA list information is mapped with geographical information. 
     
     
         8 . The AMF entity of  claim 5 , wherein the controller is further configured to:
 receive, from the UE, a protocol data unit (PDU) session request message in case that the UE is in the at least one LADN service area; and   transmit, to the UE, accept message as a response to the PDU session request message.   
     
     
         9 . A method performed by a user equipment (UE) in a mobile communication system, the method comprising:
 transmitting, to an access and mobility management function (AMF) entity, a registration request message; and   receiving, from the AMF entity, the registration accept message as a response to the registration request message, the registration accept message including data network name (DNN) information and tracking area (TA) list information which correspond to at least one local area data network (LADN) service area per DNN and single-network slice selection assistance information (S-NSSAI),   wherein the at least one LADN service area is based on information associated with the at least one LADN service area.   
     
     
         10 . The method of  claim 9 , wherein the information associated with the at least one LADN service area is associated with a local configuration or at least one subscribed LADN service area of a unified data management (UDM) entity. 
     
     
         11 . The method of  claim 9 , wherein the TA list information is mapped with geographical information. 
     
     
         12 . The method of  claim 9 , further comprising:
 transmitting, to the AMF entity, a protocol data unit (PDU) session request message in case that the UE is in the at least one LADN service area; and   receiving, from the AMF entity, accept message as a response to the PDU session request message.   
     
     
         13 . A user equipment (UE) in a mobile communication system, the UE comprising:
 a transceiver; and   a controller coupled with the transceiver and configured to:   transmit, to an access and mobility management function (AMF) entity, a registration request message; and   receive, from the AMF entity, the registration accept message as a response to the registration request message, the registration accept message including data network name (DNN) information and tracking area (TA) list information which correspond to at least one local area data network (LADN) service area per DNN and single-network slice selection assistance information (S-NSSAI),   wherein the at least one LADN service area is based on information associated with the at least one LADN service area.   
     
     
         14 . The UE of  claim 13 , wherein the TA list information is mapped with geographical information. 
     
     
         15 . The UE of  claim 13 , wherein the controller is further configured to:
 transmit, to the AMF entity, a protocol data unit (PDU) session request message in case that the UE is in the at least one LADN service area; and   receive, from the AMF entity, accept message as a response to the PDU session request message.